Solar water-heater.



PATBNTED MAY 1. 1906 M. T-. GUNNIPF.

SOLAR WATER HEATER.

APPLICATION FILED OCT. 25, 1904.

MICHAEL T.

(JUNNIFF, or RIVERSIDE, CALIFORNIA.

SOLAR WATER-HEATER.

Specification of Letters Patent.

Patented May 1, 1908.

Application tiled October 25. 1904. Serial No. 229,996-

To all whom it mag concern:

Be it known that 1, MICHAEL T. Connrrr, a citizen of the United States, residing at Riverside, in the county of Riverside and State of California, have invented new and usefullmprovements in Solar Water-Heatism described ers, of which the following is a specification The object of my invention is to provide a tank which provides a large heating capacity and of compact form and of great strength.

' I accomplish this object by the mechanherein and illustrated in the accompanying drawings, in which- Figure 1 is anend elevation with the in closing structure which surrounds the tank tank partly broken away. Fig. 2 is a per spective View of my improved tank, showing portions of the connectln pipes. Fig. 3 is a vertical section of one oft 0 tubes in the central portion of the tank, showing how it is con necped to the top and bottom plates of the tan r. i a

In the drawings, iis the roof of the build 5 ing upon which my improved heating-tank 5 is located.

6 is the usual air-tight inclosingcase, which is provided with a transparent cover 7, that surrounds the tank at the sides and top.

= 8 is a pressure-regulating tank into which the-water-supply is received from thepipe, 9,

which is connected .to the pressure-supply. (Not shown.) A pipe 10runs from the pressure-regulating tank to the lower side of the heating-tank and runs across the same, as shown'zin dotted lines'in Fig. 2; runs from the heating-tank to a source of ar A pipe 11 tificialI-heat supply,preferably the kitchenshown.)

stove, (not shown,) and'pipe 12 connects -with pipe 11 and leads the water as it becomeslheated from said artificial-heat supply to the top of the tank. A ipe 13 connects with pipe 12,.as shown in ig. 2, and-leads the 9110i: water to its place of use.

As shown in Fig. 2, the heatingtank,is rectangular in form and. consists of a broad'narrow tank of considerable length.- T116350]; plate 14 and the bottom plate 15 are strengtiened and connected together by a considerable number of ,hollow tubes 16.-

top and bottom plates of said (Not.

These tubes are preferably provided with grooves 17, which are just below the top plate and just above the bottom plate, and when the tubes are placed in the plates the tops and bottoms of the tubes are expanded outwardly and flattened upon the top and bottom plates, as best shown in Fig. 3, and are then soldered thereto in the usual manner. The tubes are preferably of copper, and the top of the tank is preferably blackened and may be made of copper, if desired. The tank'is preferably rectangular, but may be of any other shape. By this construction it will be seen that these tubes greatly strengthen the top and bottom plates, to prevent them from buckling and at the same time provide 'means for the air to circulate through the tubes within the inclosing case, thereby 'enabling the water therein to be subjected to a more uniform temperature and also provide a greater tank area subjected to-the warm air than if the tank were not provided with these tubes. The tank is slightly elevated, as shown in Fig. 1, to permlt such circulation, being supported by blocks 18, placed at suitable intervals under the tank.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

' 1. Ina solar water-heater, aheating-tank provided with a plurality of hollow stifiening and air-circulating tubes connected to the tank.

2. In a solar water-heater, a heating-tank'- of reetangularshape provided with a plurality of hollow Stifi'eningand air-circulating tubes connected to the top and bottom plates of said tank bybeing expanded at the top and bottom and then soldered thereto, said tubes having outwardly-extending grooves just below the top plate and just above the.

' bottom plate of the tank.

In testimony whereof 1f have signed myv name to this'specification in the presence of twosubsc'ribing-witnesses. i M. 

